DETERMINATION OF THE GLASS TRANSITION TEMPERATURE OF METHACRYLATE COPOLYMERS
Ключевые слова:methyl methacrylate, butyl methacrylate, copolymers, differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA).
We have obtained a new synthetic copolymers based on methyl methacrylate (MMA) and butyl
methacrylate (BMA), with use of the dinitrile as an initiator of Azobisisobutyronitrile acid (AIBN). Hence, the
obtained results show the important role of the structure of the polymer melt at a specific temperature or heat
resistance intensive degradation of polymeric materials and other characteristics of the TGA. Heat resistance, as well
as a certain temperature loss of the samples depends on the chemical structure of polymers, expressed in terms of the
glass transition temperature, the compactness of the macromolecular coil in the copolymer, which is also determined
by the structure of the coil. The role of the latter in determining the thermal resistance decreases as the glass
transition temperature of the copolymer. It was found that the thermal degradation of butyl methacrylate copolymers
studied by the mechanism of copolymerization and decomposition side butyl substituent.